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| Dir : //home/trave494/footcrew.com/public_html/wp-content/plugins/kingcomposer/includes/kc.optimized.php |
<?php
/**
*
* King Composer
* (c) KingComposer.com
* kc.optimized.php
*
*/
if(!defined('ABSPATH')) {
header('HTTP/1.0 403 Forbidden');
exit;
}
/*
* cache class
*/
class kc_optimized {
private $ignore;
private $move_down_blocking_js = false;
private $css_stack = array();
private $js_stack = array();
private $css_key;
private $css_current;
private $js_key;
private $js_current;
private $surl;
private $jsx = "/<script(.*)>(.*)<\/script>/Uis";
private $SS = '"(?:[^"\\\]++|\\\.)*+"|\'(?:[^\'\\\\]++|\\\.)*+\'';
private $CC = '\/\*[\s\S]*?\*\/';
private $CH = '<\!--[\s\S]*?-->';
private $X = "\x1A";
private $is_created = null;
function __construct(){
$this->surl = trailingslashit(str_replace(array('http://', 'https://'), "", KC_SITE));
if (!is_admin()) {
$case_get = false;
if (isset($_GET['kc_optimized_action'])) {
$action = $_GET['kc_optimized_action'];
switch ($action) {
case 'gethtml':
remove_action('wp_head', 'print_emoji_detection_script', 7);
remove_action('wp_print_styles', 'print_emoji_styles');
remove_action( 'admin_print_scripts', 'print_emoji_detection_script');
remove_action( 'admin_print_styles', 'print_emoji_styles');
$case_get = true;
break;
}
}
if ($case_get === false) {
add_action('wp_footer', array( &$this, 'in_footer' ), 99999);
}
}
}
public function in_footer() {
global $kc, $post;
$settings = get_option('kc_optimized', true);
if (!kc_is_using() || !$kc->is($settings, array('enable'), 'on'))
return;
$kc_meta = get_post_meta ($post->ID , 'kc_data', true);
if (isset($kc_meta['optimized']) && $kc_meta['optimized'] == 'deactive'){
return;
}
if ($settings['global'] != 1 && (!isset($kc_meta['optimized'])))
return;
$url = (is_ssl() ? 'https://' : 'http://');
$url .= $_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI'];
$path = $this->render_path_name($url);
if (!is_file($path)){
if ($this->parse($url) !== false)
echo '<!--Optimized successful-->';
else echo '<!--Optimized fail-->';
}
}
public function parse($url = '') {
if (!$this->is_internal($url) || !$this->create_htaccess())
return false;
$html = $this->get_html($url);
// Remove all trip html
$html = preg_replace('/<!--(.*)-->/Uis', '', $html);
// Process CSS
$regexp_css = '%<(link|style)(?=[^<>]*?(?:type="(text/css)"|>))(?=[^<>]*?(?:media="([^<>"]*)"|>))(?=[^<>]*?(?:href="(.*?)"|>))(?=[^<>]*(?:rel="([^<>"]*)"|>))(?:.*?</\1>|[^<>]*>)%si';
$this->css_key = $this->css_current = $this->js_key = $this->js_current = '';
$this->css_stack = $this->js_stack = array();
$html = preg_replace_callback($regexp_css, array(&$this, 'preg_css'), $html);
// Process Head
$html = $this->process_js ($html);
$map_id = array();
$map_link = array();
foreach ($this->js_stack as $id => $links) {
$map_id[] = $id;
$combined = $this->create_combined($links, 'js');
if ($combined !== false)
$map_link[] = $combined;
else return false;
}
foreach ($this->css_stack as $id => $links) {
$map_id[] = $id;
$combined = $this->create_combined($links, 'css');
if ($combined !== false)
$map_link[] = $combined;
else return false;
}
$html = str_replace($map_id, $map_link, $html);
$html = trim($html);
if (empty($html))
return false;
$html .= "\n".'<!-- This page has been optimized on '.date('l jS \of F Y h:i:s A').' by KingComposer Page Builder : https://kingcomposer.com -->';
return $this->create_index_file($html, $url);
}
private function process_js ($html = '') {
/* Process HEAD */
$html = preg_replace_callback("/<head[^<>]*>(.*)<\/head>/Uis", array(&$this, 'process_head'), $html);
while (strpos($html, "\n<body") !== false || strpos($html, "\n</head>") !== false || strpos($html, "</body>\n") !== false || strpos($html, "\n<html>") !== false || strpos($html, "\n</html>") !== false)
$html = str_replace(array("\n<body", "\n<head>", "</body>\n", "\n<html", "\n</html>"), array('<body', '<head>', '</body>', '<html', '</html>'), $html);
// Move all blocking script to after body
$this->move_down_blocking_js = true;
$this->stack_js_trace = array();
$html = preg_replace_callback("/<body(.*)>(.*)<\/body>/Uis", array(&$this, 'process_body'), $html);
$this->js_key = '';
$html = preg_replace_callback("/<\/body>(.*)/is", array(&$this, 'process_after_body'), $html).implode("", $this->stack_js_trace);
return $html;
}
private function process_head ($m) {
$regexp_js = "/<script[^>](.*)>(.*)<\/script>/Uis";
$html = preg_replace_callback($regexp_js, array(&$this, 'preg_head_js'), $m[0]);
return $this->minify_html ($html);
}
private function process_body ($m) {
$html = preg_replace_callback($this->jsx, array(&$this, 'preg_js'), $m[2]);
// if did not move in preg, move it manual
if ($this->js_key !== '' && $this->move_down_blocking_js !== 'body') {
$html .= "<script type=\"text/javascript\" data-ref=\"optimized\" src=\"".$this->js_key."\"></script>";
$this->js_key = '';
}
$html = '<body'.$m[1].'>'.$this->minify_html($html).implode("", $this->stack_js_trace).'</body>';
$this->stack_js_trace = array();
return $html;
}
private function process_after_body ($m) {
return preg_replace_callback($this->jsx, array(&$this, 'preg_js'), $m[0]);
}
private function preg_css ($m) {
$atts = (shortcode_parse_atts(trim(str_replace(array('<', '/>', '>'), array('', '', ''), $m[0]))));
if (isset($atts['rel']) && $atts['rel'] == 'stylesheet') {
$href = str_replace(array('http://', 'https://'), "", $atts['href']);
if ($this->css_current != $this->css_key || $this->css_key === '') {
$key = 'ref:index-'.rand(435305,43845686778);
$this->css_key = $key;
$this->css_current = $key;
$this->css_stack[$key] = array();
$this->css_stack[$key][] = $href;
return "<link rel=\"stylesheet\" data-ref=\"optimized\" href=\"".$key."\" type=\"text/css\" media=\"all\" />";
}else{ $this->css_stack[$this->css_current][] = $href;}
return '';
}else{
$this->css_key = '';
if(isset($atts['type']) && $atts['type'] == 'text/css') {
while (strpos($m[0]," ") !== false || strpos($m[0], "\n") !== false)
$m[0] = str_replace(
array( "\n"," ", ": ", " {", " "),
array( '', '', ':', '{', " "),
$m[0]
);
return $m[0];
}
return $m[0];
}
}
private function preg_head_js ($m) {
$atts = (shortcode_parse_atts(trim($m[1])));
if (isset($atts['src'])) {
$src = str_replace(array('http://', 'https://'), "", $atts['src']);
if ($this->js_key === '') {
$key = 'ref:index-'.rand(435305,43845686778);
$this->js_key = $key;
$this->js_current = $key;
$this->js_stack[$key] = array();
$this->js_stack[$key][] = $src;
}else{ $this->js_stack[$this->js_key][] = $src;}
return '';
}else{
$str = explode("\n", $m[0]);
for ($i = 0; $i < count($str[0]); $i++) {
if (strpos('//', trim($str[0][$i])) === 0)
$str[0][$i] = '';
}
$str = preg_replace('/\/\*(.*)\*\//Uis', '', implode('', $str));
while (strpos($str, " ") !== false || strpos($str, "\n") !== false)
$str = str_replace(
array( "\n"," ", ": ", " {", " "),
array( '', '', ':', '{', " "),
$str
);
return $str;
}
}
private function preg_js ($m) {
$atts = (shortcode_parse_atts(trim($m[1])));
if (isset($atts['src'])) {
$src = str_replace(array('http://', 'https://'), "", $atts['src']);
if ($this->js_key === '') {
$key = 'ref:index-'.rand(435305,43845686778);
$this->js_key = $key;
$this->js_current = $key;
$this->js_stack[$key] = array();
$this->js_stack[$key][] = $src;
$this->stack_js_trace[] = "<script type=\"text/javascript\" data-ref=\"optimized\" src=\"".$key."\"></script>";
}else{ $this->js_stack[$this->js_current][] = $src;}
}else{
$str = $this->minify_js($m[0]);
if ($this->js_key !== '' && isset($this->move_down_blocking_js) && $this->move_down_blocking_js === true) {
$str = "<script type=\"text/javascript\" data-ref=\"optimized\" src=\"".$this->js_key."\"></script>".$str;
$this->move_down_blocking_js = 'body';
}
$this->js_key = '';
$this->stack_js_trace[] = $str;
}
return '';
}
private function get_html ($url = '') {
if (strpos($url, '?') === false)
$url .= '?kc_optimized_action=gethtml&nightly=cache';
else $url .= '&kc_optimized_action=gethtml&nightly=cache';
$request = wp_remote_get ($url);
$response = wp_remote_retrieve_body ($request);
return $response;
}
private function create_index_file ($html, $url) {
$path = $this->render_path_name($url);
if ($path === false)
return false;
return (!@file_put_contents($path, $html) && !is_file($path)) ? false : true;
}
public function check_htaccess($advanced = 0) {
$path = ABSPATH;
if(isset($_SERVER["SERVER_SOFTWARE"]) && $_SERVER["SERVER_SOFTWARE"] &&
(preg_match("/iis/i", $_SERVER["SERVER_SOFTWARE"]) || (!preg_match("/Apache/i", $_SERVER["SERVER_SOFTWARE"])))
){
$this->deactive();
return array("msg" => "Work only with Apache server software. Enable optimization failed", "stt" => 0);
}
$active_plugins = (array) get_option( 'active_plugins', array() );
$ignores = array();
$list = array(
'wp-fastest-cache/wpFastestCache.php',
'w3-total-cache/w3-total-cache.php',
'wp-super-cache/wp-cache.php',
'wp-hide-security-enhancer/wp-hide.php',
'adrotate/adrotate.php',
'adrotate-pro/adrotate.php',
'mobilepress/mobilepress.php',
'speed-booster-pack/speed-booster-pack.php',
/*'cdn-enabler/cdn-enabler.php',*/
'wp-performance-score-booster/wp-performance-score-booster.php',
'bwp-minify/bwp-minify.php',
'check-and-enable-gzip-compression/richards-toolbox.php',
'gzippy/gzippy.php',
'gzip-ninja-speed-compression/gzip-ninja-speed.php',
'wordpress-gzip-compression/ezgz.php',
'filosofo-gzip-compression/filosofo-gzip-compression.php',
'head-cleaner/head-cleaner.php',
);
foreach ($list as $ign) {
if (in_array($ign, $active_plugins))
$ignores[] = '<li>'.$ign.'</li>';
}
if (count($ignores) > 0) {
return array("msg" => "Could not enable optimized, some of plugins need to be deactived to avoid conflict: <ol>".implode("", $ignores)."</ol>", "stt" => 0);
}
if(!get_option('permalink_structure') || get_option('permalink_structure', true) == '') {
return array("msg" => "Your permalink settings must be set and cannot be empty. Go to <a href='".admin_url('options-permalink.php')."' target=_blank>permalink settings</a>", "stt" => 0);
}
if ($this->create_htaccess($advanced))
return array("msg" => "Enable optimization success", "stt" => 1);
return array("msg" => "Could not created htaccess file, please make sure that your hosting is writable", "stt" => 0);
}
private function create_htaccess ($advanced = 0) {
if (is_file(ABSPATH.'.htaccess') && !is_writable(ABSPATH.'.htaccess'))
return false;
$parse = parse_url(KC_SITE);
$host = $parse['host'];
$path = isset($parse['path']) ? $parse['path'] : '';
$forceTo = $notSecure = $trailing_slash = '';
if (!is_file(ABSPATH.'.htaccess')) {
$wp_htaccess = <<<EOD
# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase {$path}/
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . {$path}/index.php [L]
</IfModule>
# END WordPress
EOD;
if (!file_put_contents(ABSPATH.'.htaccess', $wp_htaccess) && !is_file(ABSPATH.'.htaccess'))
return false;
if(!get_option('permalink_structure'))
add_option('permalink_structure', '/%postname%/');
else update_option('permalink_structure', '/%postname%/');
}
ob_start();
include ABSPATH.'.htaccess';
$htcontent = ob_get_contents();
ob_end_clean();
if (strpos($htcontent, '# BEGIN KC Optimized') !== false &&
strpos($htcontent, '# END KC Optimized') !== false &&
(
($advanced == 0 && strpos($htcontent, '# KC Gzip') === false) ||
($advanced == 1 && strpos($htcontent, '# KC Gzip') !== false)
)
)return true;
if (($advanced == 0 && strpos($htcontent, '# KC Gzip') !== false) ||
($advanced == 1 && strpos($htcontent, '# KC Gzip') === false)) {
$htcontent = preg_replace('/# BEGIN KC Optimized(.*)# END KC Optimized/Uis', '', $htcontent);
}
if(preg_match("/^https:\/\//", home_url())){
if(preg_match("/^https:\/\/www\./", home_url())){
$forceTo = "\nRewriteCond %{HTTPS} =on"."\n".
"RewriteCond %{HTTP_HOST} ^www.".str_replace("www.", "", $_SERVER["HTTP_HOST"]);
}else{
$forceTo = "\nRewriteCond %{HTTPS} =on"."\n".
"RewriteCond %{HTTP_HOST} ^".str_replace("www.", "", $_SERVER["HTTP_HOST"]);
}
}else{
if(preg_match("/^http:\/\/www\./", home_url())){
$forceTo = "\nRewriteCond %{HTTP_HOST} ^".str_replace("www.", "", $_SERVER["HTTP_HOST"])."\n".
"RewriteRule ^(.*)$ ".preg_quote(home_url(), "/")."\/$1 [R=301,L]";
}else{
$forceTo = "\nRewriteCond %{HTTP_HOST} ^www.".str_replace("www.", "", $_SERVER["HTTP_HOST"])." [NC]"."\n".
"RewriteRule ^(.*)$ ".preg_quote(home_url(), "/")."\/$1 [R=301,L]";
}
}
if(!preg_match("/^https/i", get_option("home"))){
$notSecure = "RewriteCond %{HTTPS} !=on"."\n";
}
if($this->is_trailing_slash()){
$trailing_slash = "RewriteCond %{REQUEST_URI} \/$"."\n";
}
$kchtaccess = '# BEGIN KC Optimized'."\n".
'<IfModule mod_rewrite.c>'."\n".
'RewriteEngine On'."\n".
'RewriteBase /'.$forceTo."\n".
'RewriteCond %{HTTP_HOST} ^'.$host."\n".
'RewriteCond %{HTTP_USER_AGENT} !(facebookexternalhit|WhatsApp|Mediatoolkitbot)'."\n".
'RewriteCond %{REQUEST_METHOD} !POST'."\n".
$notSecure.
'RewriteCond %{REQUEST_URI} !(\/){2}$'."\n".
$trailing_slash.
'RewriteCond %{QUERY_STRING} !.+'."\n".
'RewriteCond %{HTTP:Cookie} !(comment_author_|wordpress_logged_in|wp_woocommerce_session)'."\n".
'RewriteCond %{HTTP:Profile} !^[a-z0-9\"]+ [NC]'."\n".
'RewriteCond %{DOCUMENT_ROOT}/optimized/$1/index.html -f [or]'."\n".
'RewriteCond '.ABSPATH.'optimized'.$path.'/$1/index.html -f'."\n";
if(ABSPATH == "//"){
$kchtaccess .= "RewriteCond %{DOCUMENT_ROOT}/optimized/$1/index.html -f"."\n";
}else{
$kchtaccess .= 'RewriteCond %{DOCUMENT_ROOT}/optimized/$1/index.html -f [or]'."\n";
$kchtaccess .= 'RewriteCond '.ABSPATH.'optimized'.$path.'/$1/index.html -f'."\n";
}
$kchtaccess .= 'RewriteRule ^(.*) "'.$path.'/optimized'.$path.'/$1/index.html" [L]'."\n".'</IfModule>'."\n";
$kchtaccess .= '<FilesMatch "\.(html|htm)$">'."\n".
'AddDefaultCharset UTF-8'."\n".
'<ifModule mod_headers.c>'."\n".
'FileETag None'."\n".
'Header unset ETag'."\n".
'Header set Cache-Control "max-age=0, no-cache, no-store, must-revalidate"'."\n".
'Header set Pragma "no-cache"'."\n".
'Header set Expires "Mon, 29 Oct 1923 20:30:00 GMT"'."\n".
'</ifModule>'."\n".
'</FilesMatch>'."\n";
if ($advanced == 1) {
$kchtaccess .= <<<EOD
# KC Gzip
<IfModule mod_deflate.c>
AddType x-font/woff .woff
AddOutputFilterByType DEFLATE image/svg+xml
AddOutputFilterByType DEFLATE text/plain
AddOutputFilterByType DEFLATE text/html
AddOutputFilterByType DEFLATE text/xml
AddOutputFilterByType DEFLATE text/css
AddOutputFilterByType DEFLATE text/javascript
AddOutputFilterByType DEFLATE application/xml
AddOutputFilterByType DEFLATE application/xhtml+xml
AddOutputFilterByType DEFLATE application/rss+xml
AddOutputFilterByType DEFLATE application/javascript
AddOutputFilterByType DEFLATE application/x-javascript
AddOutputFilterByType DEFLATE application/x-font-ttf
AddOutputFilterByType DEFLATE application/vnd.ms-fontobject
AddOutputFilterByType DEFLATE font/opentype font/ttf font/eot font/otf
</IfModule>
# KC LBC
<FilesMatch "\.(ico|pdf|flv|jpg|jpeg|png|gif|js|css|swf|x-html|css|xml|js|woff|woff2|ttf|svg|eot)(\.gz)?$">
<IfModule mod_expires.c>
ExpiresActive On
ExpiresDefault A0
ExpiresByType image/gif A2592000
ExpiresByType image/png A2592000
ExpiresByType image/jpg A2592000
ExpiresByType image/jpeg A2592000
ExpiresByType image/ico A2592000
ExpiresByType image/svg+xml A2592000
ExpiresByType text/css A2592000
ExpiresByType text/javascript A2592000
ExpiresByType application/javascript A2592000
ExpiresByType application/x-javascript A2592000
</IfModule>
<IfModule mod_headers.c>
Header set Expires "max-age=2592000, public"
Header unset ETag
Header set Connection keep-alive
FileETag None
</IfModule>
</FilesMatch>
EOD;
}
$kchtaccess .= "\n".'# END KC Optimized'."\n";
if (!file_put_contents(ABSPATH.'.htaccess', $kchtaccess.$htcontent) && !is_file(ABSPATH.'.htaccess'))
return false;
flush_rewrite_rules();
return true;
}
private function is_trailing_slash(){
if($permalink_structure = get_option('permalink_structure')){
if(preg_match("/\/$/", $permalink_structure)){
return true;
}
}
return false;
}
private function create_combined ($links = array(), $type = 'js') {
$name = implode('-', $links);
$name = md5($name).'.'.$type;
$content = '';
foreach ($links as $link) {
if (strpos($link, $this->surl) !== false) {
$path = str_replace(array($this->surl, '/'), array(ABSPATH, KDS), $link);
$path = parse_url($path);
if (!is_file($path['path'])) {
// internal file : do not get content if does not exist
continue;
}
}
$get_content = $this->get_html((is_ssl() ? 'https://' : 'http://').$link);
$content .= ($type == 'js') ? $this->minify_js ($get_content) : $this->before_combined_css ($get_content, $link);
$content .= "\n";
}
if (!is_dir(ABSPATH.'optimized'))
wp_mkdir_p(ABSPATH.'optimized');
if (!file_put_contents(ABSPATH.'optimized/'.$name, $content) && !is_file(ABSPATH.'optimized/'.$name)){
return false;
}
return site_url('/optimized/'.$name);
}
private function before_combined_css($css = '', $url = '') {
$this->url = $url;
$css = $this->minify_css($css);
$css = preg_replace("/@import\s+[\"\']([^\;\"\'\)]+)[\"\'];/", "@import url($1);", $css);
$css = preg_replace_callback("/url\(([^\)\n]*)\)/", array($this, 'img_path_css'), $css);
$css = preg_replace_callback('/@import\s+url\(([^\)]+)\);/i', array($this, 'import_css_rules'), $css);
$css = $this->css_charset($css);
return !empty($css) ? $css : ' ';
}
private function img_path_css ($m) {
$mt = trim($m[1]);
$http = is_ssl() ? 'https://' : 'http://';
$fix_url = $http.dirname($this->url);
if (!preg_match("/data\:image\/svg\+xml/", $mt)){
$mt = str_replace(array("\"","'"), "", $mt);
$mt = trim($mt);
if(!$mt) return "url('')";
if (preg_match("/^(\/\/|http|\/\/fonts|data:image|data:application)/", $mt)) {
if (preg_match("/fonts\.googleapis\.com/", $mt))
$mt = '"'.$mt.'"';
} else if (preg_match("/^\//", $mt)) {
$mt = $http.dirname(home_url()).$mt;
} else if(preg_match("/^\.\/.+/i", $mt)) {
$mt = str_replace("./", $fix_url."/", $mt);
} else if(preg_match("/^(?P<up>(\.\.\/)+)(?P<name>.+)/", $mt, $out)){
$count = strlen($out["up"])/3;
$url = dirname($this->url);
for ($i = 1; $i <= $count; $i++)
$url = substr($url, 0, strrpos($url, "/"));
//$url = str_replace(array("http:", "https:"), "", $url);
$mt = $http.$url."/".$out["name"];
}else $mt = $fix_url."/".$mt;
}
return "url(".$mt.")";
}
private function import_css_rules ($m) {
//if (strpos($m[0], site_url()) !== false) {
if ($content = $this->get_html($matches[1], "?v=".time())) {
$tmp_url = $this->url;
$this->url = $m[1];
$content = $this->img_path_css($content, $m[1]);
$this->url = $tmp_url;
return $content;
}
//}
return $m[0];
}
private function css_charset ($css = '') {
preg_match_all('/@charset[^\;]+\;/i', $css, $crs);
if (count($crs[0]) > 0) {
$css = preg_replace('/@charset[^\;]+\;/i', "", $css);
foreach ($crs[0] as $cs)
$css = $cs."\n".$css;
}
return $css;
}
private function minifier_html($input = '') {
return preg_replace_callback('#<\s*([^\/\s]+)\s*(?:>|(\s[^<>]+?)\s*>)#', array(&$this, 'minifier_html_01'), $input);
}
private function minifier_html_01($m) {
if(isset($m[2])) {
// Minify inline CSS declaration(s)
if(stripos($m[2], ' style=') !== false) {
$m[2] = preg_replace_callback('#( style=)([\'"]?)(.*?)\2#i', array(&$this, 'minifier_html_02'), $m[2]);
}
return '<' . $m[1] . preg_replace(
array(
// From `defer="defer"`, `defer='defer'`, `defer="true"`, `defer='true'`, `defer=""` and `defer=''` to `defer` [^1]
'#\s(checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|ismap|loop|multiple|open|readonly|required|scoped)(?:=([\'"]?)(?:true|\1)?\2)#i',
// Remove extra white-space(s) between HTML attribute(s) [^2]
'#\s*([^\s=]+?)(=(?:\S+|([\'"]?).*?\3)|$)#',
// From `<img />` to `<img/>` [^3]
'#\s+\/$#'
),
array(
// [^1]
' $1',
// [^2]
' $1$2',
// [^3]
'/'
),
str_replace("\n", ' ', $m[2])) . '>';
}
return '<' . $m[1] . '>';
}
private function minifier_html_02($m) {
return $m[1] . $m[2] . $this->minify_css($m[3]) . $m[2];
}
private function minify_html($input = '') {
if( ! $input = trim($input)) return $input;
// Keep important white-space(s) after self-closing HTML tag(s)
$input = preg_replace('#(<(?:img|input)(?:\s[^<>]*?)?\s*\/?>)\s+#i', '$1' . $this->X . '\s', $input);
// Create chunk(s) of HTML tag(s), ignored HTML group(s), HTML comment(s) and text
$input = preg_split('#(' . $this->CH . '|<pre(?:>|\s[^<>]*?>)[\s\S]*?<\/pre>|<code(?:>|\s[^<>]*?>)[\s\S]*?<\/code>|<script(?:>|\s[^<>]*?>)[\s\S]*?<\/script>|<style(?:>|\s[^<>]*?>)[\s\S]*?<\/style>|<textarea(?:>|\s[^<>]*?>)[\s\S]*?<\/textarea>|<[^<>]+?>)#i', $input, -1, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_DELIM_CAPTURE);
$output = "";
foreach($input as $v) {
if($v !== ' ' && trim($v) === "") continue;
if($v[0] === '<' && substr($v, -1) === '>') {
if($v[1] === '!' && strpos($v, '<!--') === 0) { // HTML comment ...
// Remove if not detected as IE comment(s) ...
if(substr($v, -12) !== '<![endif]-->') continue;
$output .= $v;
} else {
$output .= $this->minify_x($this->minifier_html($v));
}
} else {
// Force line-break with ` ` or `
`
$v = str_replace(array(' ', '
', '
'), $this->X . '\n', $v);
// Force white-space with ` ` or ` `
$v = str_replace(array(' ', ' '), $this->X . '\s', $v);
// Replace multiple white-space(s) with a space
$output .= preg_replace('#\s+#', ' ', $v);
}
}
// Clean up ...
$output = preg_replace(
array(
// Remove two or more white-space(s) between tag [^1]
'#>([\n\r\t]\s*|\s{2,})<#',
// Remove white-space(s) before tag-close [^2]
'#\s+(<\/[^\s]+?>)#'
),
array(
// [^1]
'><',
// [^2]
'$1'
),
$output);
$output = $this->minify_v($output);
// Remove white-space(s) after ignored tag-open and before ignored tag-close (except `<textarea>`)
return preg_replace('#<(code|pre|script|style)(>|\s[^<>]*?>)\s*([\s\S]*?)\s*<\/\1>#i', '<$1$2$3</$1>', $output);
}
private function minifier_css($input = '') {
// Keep important white-space(s) in `calc()`
if(stripos($input, 'calc(') !== false) {
$input = preg_replace_callback('#\b(calc\()\s*(.*?)\s*\)#i', array(&$this, 'minifier_css_01'), $input);
}
// Minify ...
return preg_replace(
array(
// Fix case for `#foo [bar="baz"]` and `#foo :first-child` [^1]
'#(?<![,\{\}])\s+(\[|:\w)#',
// Fix case for `[bar="baz"] .foo` and `@media (foo: bar) and (baz: qux)` [^2]
'#\]\s+#', '#\b\s+\(#', '#\)\s+\b#',
// Minify HEX color code ... [^3]
'#\#([\da-f])\1([\da-f])\2([\da-f])\3\b#i',
// Remove white-space(s) around punctuation(s) [^4]
'#\s*([~!@*\(\)+=\{\}\[\]:;,>\/])\s*#',
// Replace zero unit(s) with `0` [^5]
'#\b(?:0\.)?0([a-z]+\b|%)#i',
// Replace `0.6` with `.6` [^6]
'#\b0+\.(\d+)#',
// Replace `:0 0`, `:0 0 0` and `:0 0 0 0` with `:0` [^7]
'#:(0\s+){0,3}0(?=[!,;\)\}]|$)#',
// Replace `background(?:-position)?:(0|none)` with `background$1:0 0` [^8]
'#\b(background(?:-position)?):(0|none)\b#i',
// Replace `(border(?:-radius)?|outline):none` with `$1:0` [^9]
'#\b(border(?:-radius)?|outline):none\b#i',
// Remove empty selector(s) [^10]
'#(^|[\{\}])(?:[^\{\}]+)\{\}#',
// Remove the last semi-colon and replace multiple semi-colon(s) with a semi-colon [^11]
'#;+([;\}])#',
// Replace multiple white-space(s) with a space [^12]
'#\s+#'
),
array(
// [^1]
$this->X . '\s$1',
// [^2]
']' . $this->X . '\s', $this->X . '\s(', ')' . $this->X . '\s',
// [^3]
'#$1$2$3',
// [^4]
'$1',
// [^5]
'0',
// [^6]
'.$1',
// [^7]
':0',
// [^8]
'$1:0 0',
// [^9]
'$1:0',
// [^10]
'$1',
// [^11]
'$1',
// [^12]
' '
),
$input);
}
private function minifier_css_01($m) {
return $m[1] . preg_replace('#\s+#', $this->X . '\s', $m[2]) . ')';
}
private function minify_css($input = '') {
if( ! $input = trim($input)) return $input;
$input = preg_replace('/\/\*(.*)\*\//Uis', '', $input);
do {
$input = str_replace(
array( "\n"," ", ": ", " {", " ", " ", "{ ", " }"),
array( '', ' ', ':', '{', " ", "", '{', '}'),
$input
);
} while (strpos($input, " ") !== false || strpos($input, "{ ") !== false || strpos($input, " }") !== false);
return $this->minify_v($input);
}
private function minifier_js($input = '') {
return preg_replace(
array(
// Remove inline comment(s) [^1]
'#\s*\/\/.*$#m',
// Remove white-space(s) around punctuation(s) [^2]
'#\s*([!%&*\(\)\-=+\[\]\{\}|;:,.<>?\/])\s*#',
// Remove the last semi-colon and comma [^3]
// '#[;,]([\]\}])#',
// Replace `true` with `!0` and `false` with `!1` [^4]
'#\btrue\b#', '#\bfalse\b#', '#\breturn\s+#'
),
array(
// [^1]
"",
// [^2]
'$1',
// [^3]
// '$1',
// [^4]
'!0', '!1', 'return '
),
$input);
}
private function minify_js($input = '') {
require_once('kc.vendors.jsmin.php');
return JSMin::minify($input);
if( ! $input = trim($input)) return $input;
$input = preg_split('#(' . $this->SS . '|' . $this->CC . '|\/[^\n]+?\/(?=[.,;]|[gimuy]|$))#', $input, -1, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_DELIM_CAPTURE);
$output = "";
foreach($input as $v) {
if(trim($v) === "") continue;
if(
($v[0] === '"' && substr($v, -1) === '"') ||
($v[0] === "'" && substr($v, -1) === "'") ||
($v[0] === '/' && substr($v, -1) === '/')
) {
// Remove if not detected as important comment ...
if(strpos($v, '//') === 0 || (strpos($v, '/*') === 0 && strpos($v, '/*!') !== 0 && strpos($v, '/*@cc_on') !== 0)) continue;
$output .= $v; // String, comment or regex ...
} else {
$output .= $this->minifier_js($v);
}
}
return preg_replace(
array(
// Minify object attribute(s) except JSON attribute(s). From `{'foo':'bar'}` to `{foo:'bar'}` [^1]
'#(' . $this->CC . ')|([\{,])([\'])(\d+|[a-z_]\w*)\3(?=:)#i',
// From `foo['bar']` to `foo.bar` [^2]
'#([\w\)\]])\[([\'"])([a-z_]\w*)\2\]#i'
),
array(
// [^1]
'$1$2$4',
// [^2]
'$1.$3'
),
$output);
}
private function minify_x($input = '') {
return str_replace(array("\n", "\t", ' '), array($this->X . '\n', $this->X . '\t', $this->X . '\s'), $input);
}
private function minify_v($input = '') {
return str_replace(array($this->X . '\n', $this->X . '\t', $this->X . '\s'), array("\n", "\t", ' '), $input);
}
private function render_path_name ($url = '') {
if (!is_dir(ABSPATH.'optimized') && wp_mkdir_p(ABSPATH.'optimized') === false)
return false;
$uparse = parse_url($url);
$path = ABSPATH.'optimized';
$name = 'index.html';
if (isset($uparse['path'])) {
$path .= $uparse['path'];
if (!is_dir($path) && !wp_mkdir_p($path))
return false;
}
return untrailingslashit($path).KDS.$name;
}
private function is_internal ($link = '') {
$parse = parse_url ($link);
return (strpos($this->surl, $parse['host']) === 0);
}
public function deactive () {
delete_option('kc_optimized');
if (!is_file(ABSPATH.'.htaccess'))
return true;
else if (!is_writable(ABSPATH.'.htaccess'))
return false;
ob_start();
include ABSPATH.'.htaccess';
$htcontent = ob_get_contents();
ob_end_clean();
$htcontent = preg_replace('/# BEGIN KC Optimized(.*)# END KC Optimized/Uis', '', $htcontent);
$htcontent = trim($htcontent);
if (!file_put_contents(ABSPATH.'.htaccess', $htcontent) && !is_file(ABSPATH.'.htaccess'))
return false;
flush_rewrite_rules();
return true;
}
public function delete_cache ($url = 'all') {
if ($url == 'all') {
return kc_remove_dir(ABSPATH.'optimized');
}else{
$file = $this->render_path_name($url);
if ($file !== false && file_exists($file))
return unlink($file);
}
}
public function update_cache($url = '') {
if ($this->delete_cache($url) )
return $this->parse($url);
return false;
}
}